Quantitative evaluation on activated property-tunable bulk liquid water with reduced hydrogen bonds using deconvoluted raman spectroscopy

Hsiao Chien Chen, Fu-Der Mai, Kuang Hsuan Yang, Liang Yih Chen, Chih Ping Yang, Yu-Chuan Liu

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Interesting properties of water with distinguishable hydrogen-bonding structure on interfacial phase or in confined environment have drawn wide attentions. However, these unique properties of water are only found within the interfacial phase and confined environment, thus, their applications are limited. In addition, quantitative evaluation on these unique properties associating with the enhancement of waters physical and chemical activities represents a notable challenge. Here we report a practicable production of free-standing liquid water at room temperature with weak hydrogen-bonded structure naming Au nanoparticles (NPs)-treated (AuNT) water via treating by plasmon-induced hot electron transfer occurred on resonantly illuminated gold NPs (AuNPs). Compared to well-known untreated bulk water (deionized water), the prepared AuNT water exhibits many distinct activities in generally physical and chemical reactions, such as high solubilities to NaCl and O2. Also, reducing interaction energy within water molecules provides lower overpotential and higher efficiency in electrolytic hydrogen production. In addition, these enhanced catalytic activities of AuNT water are tunable by mixing with deionized water. Also, most of these tunable activities are linearly proportional to its degree of nonhydrogen-bonded structure (DNHBS), which is derived from the O-H stretching in deconvoluted Raman spectrum.

Original languageEnglish
Pages (from-to)808-815
Number of pages8
JournalAnalytical Chemistry
Volume87
Issue number1
DOIs
Publication statusPublished - Jan 6 2015

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Raman Spectrum Analysis
Raman spectroscopy
Hydrogen
Hydrogen bonds
Water
Liquids
Deionized water
Nanoparticles
Hot electrons
Hydrogen production
Gold
Stretching
Raman scattering
Chemical reactions
Catalyst activity
Solubility
Hydrogen Bonding
Molecules
Electrons

ASJC Scopus subject areas

  • Analytical Chemistry
  • Medicine(all)

Cite this

Quantitative evaluation on activated property-tunable bulk liquid water with reduced hydrogen bonds using deconvoluted raman spectroscopy. / Chen, Hsiao Chien; Mai, Fu-Der; Yang, Kuang Hsuan; Chen, Liang Yih; Yang, Chih Ping; Liu, Yu-Chuan.

In: Analytical Chemistry, Vol. 87, No. 1, 06.01.2015, p. 808-815.

Research output: Contribution to journalArticle

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